# Copyright 2022 ByteDance and/or its affiliates.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

TOBENV = False


def enable_to_env():
  global TOBENV
  TOBENV = True


def get_slot_feature_name(slot: int):
  if TOBENV:
    return "fc_slot_{}".format(slot)
  else:
    return "slot_{}".format(slot)


def get_slot_from_feature_name(feature_name: str):
  if feature_name.startswith('slot_') or feature_name.startswith('fc_slot_'):
    slot = feature_name.split('_')[-1]
    return int(slot) if slot.isdigit() else None
  else:
    return None
